Diesel locomotive traction system and operation method

Abstract

The invention discloses an internal combustion locomotive traction system and an operation method, and relates to the technical field of self-traction circuits, the internal combustion locomotive traction system comprises a storage battery, a traction locomotive connected with the storage battery in series, and a first contactor arranged between the traction locomotive and a storage battery circuit; the storage battery is externally connected with a logic circuit used for closing the first contactor. According to the invention, through cooperation of the switches, each operation step of an operator is ensured to be necessary, and the purpose of incorrect operation cannot reach own needs can be achieved. The problem that in the prior art, multiple persons need to work cooperatively is solved, only one person is needed for operation, and one person is outside the warehouse to guarantee safety. The problem that in the prior art, dense smoke is caused when a traction locomotive A goes out of a warehouse is solved, and the safety of the working environment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of self-traction circuits, and in particular to a traction system and an operating method for a diesel locomotive. Background Art

[0002] Since the exhaust gas emitted by heavy diesel engines at the initial start-up is thick black smoke, which has a bad impact on the environment and health and safety of personnel in the depot, the locomotive is always powered by a locomotive traction machine (output DC50V-400A) fixed in the depot through a locomotive traction wire (wire diameter 90mm) before starting. 2 ) is plugged into the locomotive traction port, so that the locomotive can be unloaded without fire. Then start the locomotive.

[0003] At least four people are required to work together to ensure safety when using the traction machine to leave the depot. That is, one person is on the locomotive to operate the locomotive, one person is on duty at the door of the depot to monitor and look out, one person is operating the traction machine to turn the power on and off, and one person is pulling out the locomotive traction line in time to prevent the traction line from being pulled off.

[0004] There are the following disadvantages and safety hazards when using the in-depot traction machine to pull the locomotive in and out of the depot:

[0005] 1. Locomotive traction in and out of the warehouse requires too many people (at least four people), and the operation requirements are high;

[0006] 2. The traction wire length is limited, the operation fault tolerance is low, and the limitations are large;

[0007] 3. The operation steps are complicated and the outbound operation takes a long time (each traction outbound operation takes about 5 minutes);

[0008] It requires a high level of cooperation from personnel and poses a safety hazard due to bad weather or other unexpected factors. Summary of the invention

[0009] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0010] Therefore, the purpose of the present invention is to provide a diesel locomotive traction system, which aims to solve the problems of complicated operation, large number of personnel involved, and limited operation.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions: a diesel locomotive traction system and an operation method, which comprises a battery, a traction locomotive connected in series with the battery, and a No. 1 contactor arranged between the traction locomotive and the battery circuit;

[0012] The battery is externally provided with a logic circuit that can be used to close the No. 1 contactor, and the logic circuit is arranged between the battery and the No. 1 contactor.

[0013] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: the logic circuit includes, which is connected in parallel with the battery.

[0014] As a preferred solution of the diesel locomotive traction system of the present invention, the logic circuit includes a button No. 1, a traction switch and a brake air pressure relay connected in series with one end of the button No. 1; and a self-traction contactor is connected in series with the other end of the button No. 1.

[0015] As a preferred solution of the diesel locomotive traction system of the present invention, the brake air pressure relay is connected in parallel with an override switch, and the override switch is connected to the positive electrode of the battery pack.

[0016] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: a No. 1 switch is provided between the logic circuit and the No. 1 contactor;

[0017] A No. 2 switch is provided between the logic circuit and the traction locomotive.

[0018] Beneficial effects of the present invention: The present invention can ensure that each operation step of the operator is necessary through the cooperation between various switches, and the wrong operation cannot achieve the desired purpose. It solves the problem that the existing technology requires multiple people to work together, and only one person is needed to operate, and one person is required to ensure safety outside the warehouse. It solves the problem of the existing technology that the traction locomotive A leaves the warehouse and causes thick smoke in the warehouse, ensuring the safety of the working environment.

[0019] The present invention provides another operation method, the purpose of which is to solve the problem of moving the traction locomotive under different circumstances

[0020] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: the direction of leaving the warehouse is confirmed, the operating logic circuit makes the contact point No. 1 closed, and the traction locomotive is driven to move.

[0021] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: according to the direction of the locomotive leaving the depot, the No. 1 switch and the No. 2 switch are manually closed;

[0022] Close the traction switch, press button No. 1, contactor No. 1 is closed, and the traction circuit is turned on;

[0023] After leaving the warehouse, release button No. 1, contactor No. 1 is disconnected, the traction switch is manually disconnected, and the circuit is disconnected.

[0024] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: the commutator is switched to the desired travel direction, and the No. 1 and No. 2 switches are manually closed;

[0025] Keep the overrunning switch closed and close the traction switch;

[0026] Press button No. 1, contactor No. 1 will close, and the traction circuit will be turned on.

[0027] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: the No. 1 switch and the No. 2 switch are manually closed;

[0028] Keep the overriding switch closed, close the traction switch, press button No. 1 repeatedly, contactor No. 1 will energize, and the traction circuit will be turned on.

[0029] As a preferred solution of the diesel locomotive traction system of the present invention, wherein: the No. 1 switch and the No. 2 switch are manually closed;

[0030] Keep the overriding switch disconnected, the brake air pressure relay works normally, press button No. 1, and accelerate the movement of the traction locomotive.

[0031] Beneficial effects of the present invention: The present invention can adapt to a variety of operating states, and can use the most appropriate operating mode for emergency situations under different states. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A simplified diagram of the diesel locomotive traction system.

[0034] Figure 2 A complete diagram of the diesel locomotive traction system. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Example 1

[0039] Reference Figure 1 , which is the first embodiment of the present invention, and provides a diesel locomotive traction system, which includes a battery 101, a traction locomotive A connected in series with the battery 101, and a No. 1 contactor 102 provided between the traction locomotive A and the battery 101 circuit;

[0040] The battery 101 is externally provided with a logic circuit B that can be used to close the No. 1 contactor 102 . The logic circuit B is provided between the battery 101 and the No. 1 contactor 102 .

[0041] Among them, the battery 101 is connected to the power system inside the traction locomotive A to provide energy for the movement of the traction locomotive A; the No. 1 contactor 102 is connected in series in the positive connection line between the traction locomotive A and the battery 101; the logic circuit B adopts a button connection mode, that is, manual operation is required to connect the logic circuit B, and then power on to connect the No. 1 contactor 102. Its main function is that the circuit will not be connected when the logic circuit B is not manually operated; this scheme adopts the button power-on design of the existing technology, that is, the operator only needs to press the button to connect the logic circuit B, and then adsorb the No. 1 contactor 102 to ensure the circuit connection; release the button, the logic circuit B is powered off, the No. 1 contactor 102 is disconnected, and the power of the traction locomotive A is disconnected.

[0042] In summary, when in use, the direction of the traction locomotive A is determined, and the operator only needs to press a button in the car to close the operating logic circuit B to move the traction locomotive A. When the button is released, the traction locomotive A will lose power, replacing the limitations of the power supply cable of the original power supply cabinet, reducing the number of operators and the operating process; at the same time, it also reduces the risk factor caused by pulling the cable due to cable limitations.

[0043] Example 2

[0044] Reference Figure 1-2 , which is the second embodiment of the present invention, and is different from the first embodiment in that: it also includes a logic circuit B including a button No. 103, a traction switch 104 and a brake air pressure relay 105 connected in series with one end of the button No. 103; the other end of the button No. 103 is connected in series with a self-traction contactor 102.

[0045] One end of the brake air pressure relay 105 is connected to the No. 1 contactor 102, and the other end is connected to the traction switch 104. The other end of the No. 1 contactor 102 away from the traction switch 104 is connected with the traction contactor 102; the main function of the series brake air pressure relay 105 is to detect the total air cylinder pressure value and trigger the brake mechanism to ensure the braking stability of the traction locomotive A and ensure the safety of the driving process. At the same time, the brake air pressure relay 105 is installed between the No. 1 button 103 and the No. 1 contactor 102. When the No. 1 button 103 is triggered, the No. 1 contactor 102 and the self-traction contactor 102 are automatically closed, the circuit is connected, and the traction locomotive A starts to run. The main function of the traction switch 104 is to prevent misoperation, to prevent the operator from accidentally touching the No. 1 button 103 when it is not necessary to operate, resulting in the circuit being connected and the traction locomotive A starting; when the traction locomotive A needs to move, the operator needs to close the traction switch 104 first, and then operate the No. 1 button 103 to move the traction locomotive A.

[0046] The brake air pressure relay 105 is connected in parallel with an override switch 106 , and the override switch 106 is connected to the positive pole of the battery pack 101 .

[0047] Among them, the main function of the brake air pressure relay 105 is to detect the total air cylinder pressure value and trigger the brake mechanism to ensure the braking stability of the traction locomotive A and the safety of the driving process; connecting the override switch 106 in parallel with the brake air pressure relay 105 can disconnect the circuit from the brake air pressure relay 105, that is, when the override switch 106 is closed, the brake air pressure relay 105 no longer works, and the circuit realizes a closed loop through the override switch 106 to achieve normal function of the circuit.

[0048] For example, when the total air cylinder pressure inside the traction locomotive A is insufficient to support the brakes, the override switch 106 and the traction switch 104 can be closed. When leaving the warehouse, the No. 1 button 103 is pressed and not released, so that the circuit between the battery 101 and the traction locomotive A is closed to bypass the brake air pressure relay 105. The advantage of this design is that there is no need to start the brake air pressure relay 105, there is no need to connect the fuel system inside the traction locomotive A, and no thick smoke will be generated, causing the thick smoke in the factory to affect the vision and working environment.

[0049] A No. 1 switch 107 is provided between the logic circuit B and the No. 1 contactor 102;

[0050] A second switch 107a is provided between the logic circuit B and the traction locomotive A.

[0051] Among them, the No. 1 switch 107 and the No. 2 switch 107a are controlled by a switch controller, whose main function is that when the battery 101 is used to power the traction locomotive A, this switch must be pushed to close, reminding the operator to understand which action he is going to operate before use, and also preventing someone from accidentally touching the No. 1 button 103, causing the traction locomotive A to leave the warehouse.

[0052] In summary, this solution can be applied to a variety of working conditions in reality. For example, the in-depot traction out-of-depot mode is to move the traction locomotive A outside the depot without activating the fuel system; first, the override switch 106, the traction switch 104, the No. 1 switch 107 and the No. 2 switch 107a are all closed. The purpose of this operation is to "exclude" the brake air pressure relay 105 components in the circuit, so that the brake air pressure relay 105 does not participate in the work, and then the operator presses the No. 1 button 103 to allow the traction locomotive A to drive out of the depot at a low speed, and then releases the No. 1 button 103, and uses friction to slow down the traction locomotive A and stop it outside the depot.

[0053] In the warehousing working state, disconnect the override switch 106 so that the brake air pressure relay 105 can be in working state. At this time, turn off the fuel system, and then close the traction switch 104, the No. 1 switch 107 and the No. 2 switch 107a. If the No. 1 button 103 is pressed at this time, if the traction locomotive A does not move, it proves that the brake air pressure relay 105 detects that the braking system cannot work normally. At this time, pressing the No. 1 button 103 is not suitable for traction locomotive A to enter the warehouse. If the brake cannot be used, an accident may occur. For example, if the warehousing is not in place, the brake may not be applied, resulting in collision with other objects; if the traction locomotive A moves normally, it proves that the brake air pressure relay 105 works normally and the brake can be used normally. Then, after the warehousing is in place normally, release the No. 1 button 103 and step on the brake to ensure that the traction locomotive A can enter the warehouse safely.

[0054] Example 3

[0055] Reference Figure 1-2 , which is the third embodiment of the present invention: it includes operation modes under multiple states.

[0056] After the traction locomotive A leaves the depot, the logic circuit B can be directly connected to adsorb the No. 1 electric contact 102 to close the circuit, so that the traction locomotive A can be powered on, and the traction locomotive A can leave the depot without using the fuel system. The main function is to ensure that the fuel system is not needed when leaving the depot, and a large amount of smoke will not be generated to affect the vision of the depot and the working environment of the operators. At the same time, the power source for the traction locomotive A to leave the depot is integrated with the traction locomotive A, which can solve the problem of limited exit distance of the traction locomotive A due to the limitation of cable length.

[0057] Preferably, according to the direction of the locomotive leaving the depot, the No. 1 switch 107 and the No. 2 switch 107a are manually closed;

[0058] The traction switch 104 is closed, the No. 1 button 103 is pressed, the No. 1 contactor 102 is attracted, and the traction circuit is turned on;

[0059] After leaving the warehouse, release the No. 1 button 103, the No. 1 contactor 102 is disconnected, the traction switch 104 is manually disconnected, and the circuit is disconnected.

[0060] First, close the No. 1 switch 107 and the No. 2 switch 107a. This process is designed to prevent operating errors by the operator. Even when in use, the No. 1 switch 107 and the No. 2 switch 107a are closed and the circuit will not be connected without pressing the No. 1 button 103. When the operator determines that the function of this circuit needs to be used, then close the traction switch 104 and press the No. 1 button 103 to close the circuit and use the battery 101 to provide power for the traction locomotive A.

[0061] At the same time, operators also need to operate different switches according to specific circumstances to ensure that their operations are proper and no errors occur.

[0062] Further preferably, the commutator is switched to the desired travel direction, and the No. 1 switch 107 and the No. 2 switch 107a are manually closed;

[0063] Keep the overriding switch 106 closed and close the traction switch 104;

[0064] When the button No. 103 is pressed, the contactor No. 102 is energized and the traction circuit is turned on.

[0065] In the previous operation mode, the override switch 106 is closed. This process is mainly used when the brake effect fails. When the traction locomotive A cannot move, that is, the internal power system fails, the traction locomotive A may occupy the road, causing the subsequent traction locomotive A to be unable to work normally. At this time, avoid the brake air pressure relay 105 and close the override switch 106 to energize the circuit. However, because this solution lacks brake braking, this operation is only suitable for long distances and emergency situations to ensure that the traction locomotive A will not need to brake.

[0066] Preferably, the No. 1 switch 107 and the No. 2 switch 107a are closed manually;

[0067] Keep the override switch 106 closed, close the traction switch 104, press the No. 1 button 103 repeatedly, the No. 1 contactor 102 is attracted, and the traction circuit is turned on.

[0068] Close the override switch 106. This process is mainly used when the brake effect fails. When traction locomotive A cannot move, that is, the internal power system fails, traction locomotive A may occupy the road, causing the subsequent traction locomotive A to fail to work normally. At this time, avoid the brake air pressure relay 105, close the override switch 106, energize the circuit, and then press the number one button 103 repeatedly to ensure that the speed of traction locomotive A is less than 5Km / h. This process is to ensure that traction locomotive A can stop traction locomotive A in a short time by relying on the friction between traction locomotive A and the track, ensure safety, and no economic damage will be caused even if a collision occurs. It is mainly used in situations where short-distance depot is required.

[0069] Preferably, the No. 1 switch 107 and the No. 2 switch 107a are closed manually;

[0070] Keep the override switch 106 disconnected, the brake air pressure relay 105 works normally, press button 103 to accelerate the movement of traction locomotive A.

[0071] First, close the No. 1 switch 107 and the No. 2 switch 107a, keep the overrunning switch 106 open, and then close the traction switch 104, introduce the brake air pressure relay 105 into the closed-loop circuit to work. If it is detected that the total air cylinder pressure in the traction locomotive A is less than 0.4Mpa, the brake air pressure relay 105 will not be closed at this time, and the circuit cannot be closed. At this time, there is a risk of using the battery ZDC, that is, the operation of the traction locomotive A that needs to use the brake is not suitable to continue. For example, when the traction locomotive A is put into storage, the brake needs to work normally to ensure that the traction locomotive A can stop at a suitable and accurate position. At the same time, the introduction of the brake air pressure relay 105 can also solve the problem that in an emergency, when the traction locomotive A's own power system is damaged and needs to be moved, it can leave the current position at high speed and can be parked smoothly at a designated safe position without being limited by distance and position.

[0072] In summary, the advantages of this circuit are:

[0073] 1. Through the collaboration between various switches, it can ensure that each operation step of the operator is necessary, and incorrect operation cannot achieve the desired purpose.

[0074] 2. It can adapt to various operating conditions and use the most appropriate operating mode for emergency situations under different conditions.

[0075] 3. It solves the problem that the existing technology requires multiple people to work together. Only one person is needed to operate and one person is outside the warehouse to ensure safety.

[0076] 4. The existing technology solves the problem that the traction locomotive A leaves the warehouse causing thick smoke in the warehouse, ensuring the safety of the working environment.

[0077] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0078] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0079] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A diesel locomotive traction system, characterized in that: It comprises a storage battery (101), a traction locomotive (A) connected in series with the storage battery (101), and a No. 1 contactor (102) provided between the circuit of the traction locomotive (A) and the storage battery (101); The storage battery (101) is externally provided with a logic circuit (B) that can be used to close the No. 1 contactor (102).

2. The diesel locomotive traction system according to claim 1, characterized in that: The logic circuit (B) is arranged between the storage battery (101) and the first contactor (102).

3. The diesel locomotive traction system according to claim 2, characterized in that: The logic circuit (B) comprises a button (103), a traction switch (104) and a brake air pressure relay (105) connected in series with one end of the button (103); and a self-traction contactor (1021) is connected in series with the other end of the button (103).

4. The diesel locomotive traction system according to claim 3, characterized in that: The brake air pressure relay (105) is connected in parallel with an override switch (106), and the override switch (106) is connected to the positive electrode of the battery pack (101).

5. The diesel locomotive traction system according to claim 4, characterized in that: A No. 1 switch (107) is provided between the logic circuit (B) and the No. 1 contactor (102); A second switch (107a) is provided between the logic circuit (B) and the traction locomotive (A).

6. An operating method, characterized in that: A diesel locomotive traction system comprising any one of claims 1 to 5, and; After confirming the direction of the outbound transport, the logic circuit (B) is operated to close the No. 1 contact point (102), thereby driving the traction locomotive to move.

7. The diesel locomotive traction system according to claim 6, characterized in that: According to the direction of the locomotive leaving the depot, manually close the No. 1 switch (107) and the No. 2 switch (107a); The traction switch (104) is closed, and the No. 1 button (103) is pressed, so that the No. 1 contactor (102) is attracted and the traction circuit is turned on; After leaving the warehouse, the No. 1 button (103) is released, the No. 1 contactor (102) is disconnected, the traction switch (104) is manually disconnected, and the circuit is disconnected.

8. The diesel locomotive traction system according to claim 6, characterized in that: The commutator is switched to the desired travel direction, and the No. 1 switch (107) and the No. 2 switch (107a) are manually closed; Keep the overriding switch (106) closed and close the traction switch (104); When the No. 1 button (103) is pressed, the No. 1 contactor (102) is closed and the traction circuit is turned on.

9. The diesel locomotive traction system according to claim 6, characterized in that: Manually close the No. 1 switch (107) and the No. 2 switch (107a); Keep the overrunning switch (106) closed, close the traction switch (104), press the No. 1 button (103) repeatedly, the No. 1 contactor (102) is attracted, and the traction circuit is turned on.

10. The diesel locomotive traction system according to claim 6, characterized in that: Manually close the No. 1 switch (107) and the No. 2 switch (107a); Keep the overriding switch (106) disconnected, the brake air pressure relay (105) works normally, press the No. 1 button (103) to accelerate the movement of the traction locomotive (A).

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